"The girlfriend" potentially quickly becomes "the wife" and "the wife" is considerably less tolerant of mods (by the way, most accounts appear to indicate that "the wife" is a hell of a lot more prickly than "a wife"), so please take advantage of this opportunity to argue the mod budget to at least 6x (make that 500 dollar ACS chrome exhaust finisher look bargain basement) so you are not completely shocked when "the wife" marches straight to Century City and alleges irreconcilable differences over your penchant for 2 dollar windshield washer fluid.